Telescoping stand with pivoting head

ABSTRACT

A stand including a column that is mounted on a base section and that has at least one profiled element. A head unit which includes a pivoting element that can be tilted about a horizontal pivoting axis and can be clamped in a desired tilted position is fixed to the upper end section of the column and an upper face of the pivoting element has a receiving element. This invention provides a stable inclined position by a simple manipulation. To achieve this, the head unit includes a bolt which extends into a longitudinal cavity of the profiled element and is fixed relative to the upper end section and in which the pivoting element is mounted.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a stand with a column, which is placed on abase section and has at least one profiled element, at whose upper endsection a heat unit is fastened, which has a pivot element that can betilted around a horizontal pivot shaft, can be clamped in place in adesired tilt position, and has a receiver element on its top.

2. Discussion of Related Art

Such a stand in the form of a support for holding objects is disclosedby European Patent Reference EP 0 555 685 A1. In connection with thisknown stand a head unit, which can be tilted around a pivot shaft, isattached to the upper portion of a slim column, wherein a relativelyelaborate fastening section overlaps the upper end section of thecolumn.

SUMMARY OF THE INVENTION

It is one object of this invention to provide a stand of the typementioned above but wherein the head unit is solidly mounted on thecolumn by a simple structure.

This object is attained with a head unit that has a pin, which projectsinto a longitudinally extending hollow space of the profiled element andwhich is attached, fixed in place with respect to the upper end sectionof the profiled element, in which the pivot element is seated.

With this structure the column can be designed solid and the attachmentof the head unit is solidly and simply designed. Thus, it is alsopossible to attach larger device housings to the receiver element, forexample.

The steps, wherein the pin has a vertical gap open toward the top, intowhich the pivot element, which is embodied as a plane-parallel plate, isinserted, contribute to a simple structure with assured functioning andsimple handling, wherein the thickness of the pivot element is matchedto the clearance of the gap, and the pivot shaft projects through thepin with the pivot element in the area of the gap in the direction ofthe normal perpendicular line, and the pivot element projects beyond theupper front face of the pin.

Handling and an assured function are enhanced if a clamping bore, whichterminates in the gap in the area of the inserted pivot element, is cutparallel with respect to the pivot shaft into the gap area of the pin,and a clamping bolt of a manually adjustable clamping lever with a screwthread is guided transversely through the profiled element which isscrewed into a screw thread cut into the profiled element, or a separatescrew piece, and can be clamped in place with a front face against thepivot element for fixing a desired inclination of the receiver element.

Further steps for simple, solid mounting are advantageous if aflange-like or ring-shaped fastening element is fixed to the upper frontface or the lateral end area of the pin, which projects laterally beyondthe pin in the manner of a collar, and by which the pin can be fastenedon the upper front face of the profiled element.

The fastening element can be welded or screwed to the profiled element,wherein screw channels which extend longitudinally inside the hollowspace of the profiled element are provided for screwing.

Mounting, along with a solid construction are also enhanced if thethreaded piece is inserted into a longitudinally extending receivinggroove cut into the hollow chamber of the profiled element.

If the column has an outer profiled section attached to the basesection, and an inner profiled section seated in a telescopicallydisplaceable manner in it and fixable in several positions, and if theprofiled element is formed by the inner profiled section, it is easy toemploy different inner profiled sections with different head sectionsattached to them for different uses. Further simple mounting optionsthus result.

Sections of the inner contours of the outer profiled section can bematched in cross section to the outer contours of inner profiledsections which have different cross-sectional shapes, so that thedifferent inner profiled sections having respectively three outercontour sections which are spaced apart in the circumferentialdirection, are supported, non-tiltable in the transverse direction, flatover the length, on at least three inner contour sections which areoffset with respect to each other.

BRIEF DESCRIPTION OF THE DRAWINGS

This invention is explained in greater detail in view of exemplaryembodiments shown in the drawings, wherein:

FIG. 1 shows a stand with a height-adjustable column in a perspectiveview;

FIGS. 2 a to 2 c show cross-sectional views of the column in accordancewith FIG. 1 with identical outer profiled sections and different innerprofiled sections;

FIG. 3 shows a clamping area of the column, wherein the clampingelements are disassembled, in a perspective view;

FIG. 4 shows the clamping area of the column, in a cross section view;

FIG. 5 shows a perspective view of the column with a gas spring in apartially disassembled state;

FIG. 6 shows an area of a head unit in the removed state, in aperspective view; and

FIG. 7 shows another perspective view of the head unit in accordancewith FIG. 6.

DESCRIPTION OF PREFERRED EMBODIMENTS

A height-adjustable stand represented in FIG. 1 has a flat, one-piecebase plate 1 with a vertical support 2 attached centrally to it, onwhich an outer profiled section 3, whose inner cross-section is matchedto the support 2, is fastened. The outer profiled section 3 is acomponent of a height-adjustable column 30, which has an inner profiledsection 4 as a further component, which is inserted into the outerprofiled section 3 and can be height-adjusted therein in atelescope-like manner. The inner profiled section 4 has a head element7, which is attached to an upper end area and has a plate-shapedreceiver element 9, which can be tilted around a horizontal axis. Theinner profiled section 4 can be continuously height-adjusted inside theouter profiled section 3 and can be fixed in place at a desired heightby a clamping mechanism having a manually actuable clamping lever 5 anda clamping element which can be displaced by the clamping lever 5transversely in relation to the longitudinal axis. For fixing thereceiver element 9 in place in a desired tilted position, there is afurther clamping lever 8. The plate-shaped receiver element 9 hasfastening bores 9.1, as well as further fastening bores for attaching adevice housing or a deposit plate.

As shown in FIGS. 2 a, 2 b and 2 c, the outer profiled section 3 hasinner contour sections 3.1, 3.2 of different cross sections, which arematched in sections to different outer contour sections 4.1, 4.2 ofdifferent inner profiled section 4 and support the inner profiledsection 4 laterally on at least three sides so that the inner profiledsection 4 is guided, non-tiltable and steady, in the longitudinaldirection, during which, viewed in a longitudinal direction, plane-likeguide sections result from the inner contour sections 3.1, 3.2 and thecomplementary outer contour sections 4.1, 4.2, because the cross sectionof the outer profiled section remains the same over its length.

In the exemplary embodiment in accordance with FIG. 2 a, the innercontour of the outer profiled section 3 has rounded inner contoursections 3.1, as well as angular inner contour sections 3.2, wherein therounded inner contour sections 3.1 are located, spaced apart from eachother, on a circular path and enclose, on several sides, an innerprofiled section 4, substantially circular in cross section, havingrounded outer contour sections 4.1, which are connected with each otherand are located on a corresponding circular path, so that an all-aroundtilt-preventing support of the inner profiled section 4 inside the outerprofiled section 3 results. For example, four larger and four smallerinner contour sections 3.1 exist, which are distributed around the innerprofiled section 4 over more than 180°, for assuring the tilt-preventingsupport. The inner profiled section 4 is flattened only on twooppositely located long sides and has in its interior longitudinallyextending screw channels 4.3 for mounting a mounting element of the headelement 7 on the front face. In this embodiment, the inner profiledsection 4 can be rotated around the vertical, or linearly extending axisin the outer profiled section 3. If rotation around the vertical axis isto be avoided, it is possible such as shown in FIG. 4, for a transversepin 4.4 to be conducted through the inner profiled section 4, whichprotrudes on both sides past the outside of the inner profiled section 4and projects into holding grooves 3.4 on both sides, which are formed inthe inner contour of the outer profiled section 3.

As FIG. 2 b shows, it is also possible to use a simple profiled tubewith circular cross section as the inner profiled section 4, whose outercontour sections 4.1 are supported, safe against tilting and slidingly,in a corresponding manner by the rounded inner contour sections 3.1, thesame as the inner profiled section 4 in accordance with FIG. 2 a. Here,too, as in connection with FIG. 4, a rotation prevention can be providedby a transverse pin 4.4 as in the exemplary embodiment in accordancewith FIG. 2 a.

In the exemplary embodiment in accordance with FIG. 2 c, a substantiallysquare inner profiled section 4 is inserted into an outer profiledsection 3, wherein four angular inner contour sections 3.2, formed inthe inner contour of the outer profiled section 3, are used for thetilt-preventing, slidingly guided seating of the inner profiled section4, including the corner areas of the inner profiled section 4. It issimilarly possible to form different angular inner contour sections inthe outer profiled section 3 in order to receive an inner profiledsection 4 in a guided manner which, for example, has a rectangular,triangular or otherwise polygonal cross section.

The rounded inner contour sections do not have to be embodied in theshape of a section of a circle and to lie on a circular path, butinstead they can be matched to an inner profiled section which is ovalin cross section, for example.

As FIGS. 3 and 4, also in connection with FIGS. 2 a to 2 c show, apreferably T-shaped clamping groove 3.3 with an opening located towardthe interior, into which the clamping element 6 of the clampingmechanism is inserted for fixing the inner profiled section 4 at adesired height position, is formed in the inner contour of the outerprofiled section 3. The clamping element 6 rests with a clamping platesection 6.1 in the clamping groove 3.3 and is maintained, secure againstsliding in the clamping groove 3.3, on the upper front face of the outerprofiled section 3 by an outwardly extending holding protrusion 6.2. Inthe area of the clamping plate section 6. 1, namely in a holding bore6.3 of the clamping element 6 cut there, a transversely extendingthreaded bore 3.5 is cut into the outer profiled section 3, into which athreaded pin 5.1 of the clamping lever 5 is screwed and projects with anend section of reduced diameter into the holding bore 6.3, and restswith a flange-like shoulder of the threaded pin 5.1 on the exterior ofthe clamping plate section 6.1 so that, when the threaded pin 5.1 isscrewed in, the clamping element 6 is displaced inward and clamps theinner profiled section 4 in place in the outer profiled section 3.

With the construction shown in FIG. 5, the inner profiled section 4 issupported by a gas spring 10 on the base section, so that lifting theinner profiled section 4 with the receiver element 9 and an object ordevice located thereon is easily possible. The gas spring 10 is fixed inplace in the hollow inner profiled section 4 by at least one fasteningbolt 11, and on the other side by at least one fastening bolt 12 in thehollow support 2, which results in a simple assembly. The outer profiledsection 3, which is supported with its lower end on the base plate 1,can be simply fixed in place on the support 2 by fastening bolts orscrews.

FIG. 6 shows the upper portion of the inner profiled section 4 with thehead element, or the head unit 7, which can be inserted therein, in moredetail, wherein the head unit 7 is removed. The head unit 7 has anadjusting unit 20 for adjusting the inclination of the receiver unit 9which, for example, is plate-shaped. The adjusting unit 20 has avertical pin 21 arranged underneath the receiver unit 9, which isinserted, with as little play as possible, into the inner hollow chamberof the inner profiled section 4, wherein inwardly protruding holdingribs, which are supported on the exterior circumference of the pin 21,are arranged in the inner hollow chamber of the inner profiled section4. The screw channels 4.3, which terminate in the upper end, are alsocut into the hollow chamber of the interior profiled section 4.Furthermore, at least one receiving groove 4.5 extending in the lineardirection for inserting a threaded piece 8.2 in the form of a cage nutis formed in the hollow chamber of the interior profiled section 4.

As shown in particular in FIG. 7, the pin 21 which is cylinder-shaped,for example, has a gap 26, open to the top, in its diameter area, intowhich a pivot element 23, embodied as a plane-parallel plate, isinserted, pivotable around a horizontal pivot shaft 24. The thickness ofthe pivot element 23 is matched to the clearance of the gap 26, borderedby also plane-parallel lateral faces, so that the pivot element 23 canbe pivoted easily and free of play. The pivot shaft 24 is passed throughthe pin 21 and the pivot element 23 in the direction of the normalperpendicular line with respect to the plate-shaped pivot element 23.The pivot element 23 protrudes upward beyond the pin 21 and supports onits top the receiver element 9 fastened on it, so that the receiverelement 9 can be tilted along with the pivot element 23.

Also, a clamping bore 25 is cut, parallel with the pivot shaft 24, inthe pin 21 in the area of the plate-shaped pivot element 23, into whichprojects a clamping bolt 8.1 of the clamping lever 8, wherein theclamping bolt 8.1, which has a screw thread, that can be displaced inthe threaded piece 8.2 inserted into the receiving groove 4.5 so farthat with its front face it can be clamped in place on the pivot element23 for fixing in a desired tilt position. From this results a simple,secure clamping mechanism for fixing the pivot element 23 and also thereceiver element 9, in place in the desired inclined position.

The head element, or the head unit 7, is fastened by a fastening piece22 on the front of the inner profiled section 4, for example by screwsor by welding. Thus the fastening piece 22 is plate-shaped orring-shaped and is attached in the upper end area, or on the front ofthe pin 21, and projects beyond the latter on the circumferential side.For being screwed in, the fastening piece 22 has holes which correspondto the screw channels 4.3, so that it can be rigidly connected with theinner profiled section 4 by screws which can be inserted into the screwchannels 4.3. Further fastening screws 13 are provided for attaching adeposit plate or device housing to the receiver element 9 in thefastening bores 9.1, or further fastening bores.

1. A stand with a column (30) placed on a base section (1, 2) and havingat least one profiled element (4) with an upper end section fastened toa head unit (7) which has a pivot element (23) that can be tilted arounda horizontal pivot shaft (24), can be clamped in place in a desired tiltposition, and that has a receiver element (9) on a top, the standcomprising: the head unit (7) having a pin (21) projecting into alongitudinally extending hollow space of the profiled element (4) andwhich is fixedly attached with respect to the upper end section of theprofiled element in which the pivot element (23) is seated, the pin (21)having a vertical gap (26) open toward a top, into which the pivotelement (23) embodied as a plane-parallel plate is inserted, a thicknessof the pivot element (23) being matched to a clearance of the gap (26),and the pivot shaft (24) projecting through the pin (21) with the pivotelement (23) near the gap (26) in a direction of a normal perpendicularline, and the pivot element (23) projecting beyond an upper front faceof the pin (21); wherein a clamping bore (25) terminates in the gap (26)near the inserted pivot element (23) and is cut parallel with respect tothe pivot shaft (24) into the gap area of the pin (21), and a clampingbolt (8.1) of a manually adjustable clamping lever (8) with a screwthread is guided transversely through the profiled element (4) screwedinto a screw thread which is cut into one of the profiled element and aseparate threaded piece (8.2), and is clamped in place with a front faceagainst the pivot element (23) for fixing a desired inclination of thereceiver element (9).
 2. The stand in accordance with claim 1, wherein afastening element (22) is fixed to the pin (21) which projects laterallybeyond the pin (21) and by which the pin (21) is fastenable on an upperfront face of the profiled element (4).
 3. The stand in accordance withclaim 2, wherein the fastening element (22) is one of welded and screwedto the profiled element (4), and screw channels (4.3) extendlongitudinally inside a hollow space of the profiled element (4).
 4. Thestand in accordance with claim 3, wherein the threaded piece (8.2) isinserted into a longitudinally extending receiving groove (4.5) cut intothe hollow space of the profiled element (4).
 5. The stand in accordancewith claim 4, wherein the column (30) has an outer profiled section (3)attached to the base section (1,2), and an inner profiled section (4) isseated in a telescopically displaceable manner and can be fixed in placein several positions, and the inner profiled section (4) forms theprofiled element.
 6. The stand in accordance with claim 5, whereinsections of inner contours of the outer profiled section (3) are matchedin cross section to outer contours of inner profiled sections (4) buthave different cross-sectional shapes.
 7. The stand in accordance withclaim 1, wherein the threaded piece (8.2) is inserted into alongitudinally extending receiving groove (4.5) cut into the hollowspace of the profiled element (4).
 8. The stand in accordance with claim1, wherein the column (30) has an outer profiled section (3) attached tothe base section (1,2), and an inner profiled section (4) is seated in atelescopically displaceable manner and can be fixed in place in severalpositions, and the inner profiled section (4) forming the profiledelement.
 9. The stand in accordance with claim 8, wherein sections ofinner contours of the outer profiled section (3) are matched in crosssection to outer contours of inner profiled sections (4) but havedifferent cross-sectional shapes.
 10. A stand with a column (30) placedon a base section (1, 2) and having at least one profiled element (4)with an upper end section fastened to a head unit (7) which has a pivotelement (23) that can be tilted around a horizontal pivot shaft (24),can be clamped in place in a desired tilt position, and that has areceiver element (9) on a top, the stand comprising: the head unit (7)having a pin (21) projecting into a longitudinally extending hollowspace of the profiled element (4), the head unit fixedly attached withrespect to the upper end section of the profiled element in which thepivot element (23) is seated, the head unit including flange-shaped or aring-shaped fastening element (22) fixed to one of an upper front faceor a lateral end area of the pin (21), projecting laterally beyond thepin (21) as a collar and by which the head unit (7) is fastenable on theupper end section of the profiled element (4), by fastening screws intoscrew channels (4.3) extending longitudinally inside a hollow space ofthe profiled element (4).